Miscellaneous DOS Functions

 2bH set system date             2eH   set/query disk verify level
 2dH set system time             3300H query Break-checking level
 57H query time/date of a file   3301H set Break-checking level

 25H set interrupt vector
 35H query interrupt vector

 30H   query DOS Version (as set via SetVer)
 3306H query actual DOS Version

 50H set current process ID
 51H query current process ID
 34H get InDOS and ErrorMode addresses

 2fH query Disk Transfer Address (DTA)
 1aH set Disk Transfer Address (DTA)

 37H set the DOS command line switch character ◄obsolete►
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 TSR/Popup Functions                          Service Groups   DOS Functions